Introductions

The Sentinel's Eternal Refuge is a new craft legendary gear in 7.2.
Requires lvl101 and can be traded in game. Because the map of the broken
coast is very small, so there is the big chance for the fight between
alliance and horde. This is a good use for this kind of craft legendary
gear.

If you have all of these, you can craft The Sentinel's Eternal Refuge. You can choose to use by yourself or sell it at AH.
Are you worried about the first legendary gear? Collect WOW gold to buy one at AH, this is also a good choice.